Summary: organic cultivation is an important way to improve product quality. The development of specific varieties for organic cultivation and the development of accompanying organic nutrients are key technical measures to achieve efficient production of organic cultivation. The results of this experiment, which uses the whole organic nutrient cultivation model with organic matrices in combination with organic nutrient fluids, are a comparative experiment with watermelon mixes and a selection study of organic nutrient formulations in the sheds and solar greenhouses, as follows: an integrated assessment of the growth properties, yields and quality of five types of mixed watermelon combinations, using organic matrices combined with organic nutrient fluids. Important growth and development cycles, such as the growth period of fruit and the full reproductive period, as well as growth indicators such as growth and easy to eat, yield indicators such as single fruit quality, yield per hectare, soluble solids of fruit centres and edges, and soluble sugar, were analysed. Enabling individual? Quality indicators using a subjective level of analysis, objective entropy, using a combination of gaming-based empowerment methods to calculate the weights of the indicators, and finally using the topsis method to make a comprehensive evaluation of the quality of the fruits of mixed watermelon combinations. The results show that a hybrid combination of `1807 wme167' is the best pre-maturity; it is generally strong and easy to sit. `1712 wme237 ' fruit-skin thickness is the thinest in the mix of reptile cultivation, 6. 92 mm; `1807 wme339' fruit-skin thickness, 3. 04 mm, is the thinest in the species of concubine cultivation. The highest levels of soluble solids were found in the mix of `1807 wme338' with 11. 32% central soluble solids and 8. 77% border soluble solids. A comprehensive analysis of the quality of the fruit shows that the highest combinations of the combined quality evaluation under the two cultivation models are `1812 wme001' and `1807 wme338', respectively, which are most suitable for all-organized nutrient-basket cultivation. (2) screening study of mixed watermelon mixes in the solar greenhouse. A comparative analysis of the growth properties, yields, quality and volatile material content of the watermelon mix, using an all-organized nutrition bag, shows that the `summan rs 66-57' is the best early ripening; `sud 907-147' yield indicators are the best, with a single fruit weight of 3. 25 kg and 5. 41kg/m2 per hectare, respectively; and `summan 6' centre has the highest soluble solid content of 13. 53 per cent. The total amount of volatile substances `907-124' is analysed to be the highest, with the most fragrance. The highest levels of characteristic fragrances are found in the somman rs 66-57, with the most fragrances of watermelons and watermelons. All-organized nutrient matrix cultivation has been validated in a way that is better than soil cultivation combined with organic nutrient fluids. A comprehensive assessment of the quality of the watermelon fruit and the content of volatile substances, using vague sub-functional values, determined that the three best-quality and best-tempered watermelon hybrids were `shotman 6 ' , `shotman 907-099 ' and `shotman 907-032 ' under a fully organic nutrition bag in the solar greenhouse. (3) study of the qualitative impact of different combinations of watermelons and different nutrient formulations on the production of watermelons. Three of the most excellent watermelon hybrids screened in the solar greenhouses were used in conjunction with the application of three different formulations. The results of the study show that, from a formulation point of view, organic nutrient formulations, dominated by pig dung, are more likely than the other two formulations to contribute to the growth and development of watermelons, improve the quality of fruit and better coordinate the distribution of nutrients during various periods of growth. From the point of view of variety, the best type is `shotman 907-032'. In summary, the best treatment is that of `shotman 907-032' in conjunction with pig shit。
